|
HS Code |
347138 |
| Chemical Name | Sodium Hydroxide |
| Chemical Formula | NaOH |
| Molar Mass | 39.997 g/mol |
| Appearance | White, odorless solid |
| Melting Point | 318 °C |
| Boiling Point | 1,388 °C |
| Density | 2.13 g/cm³ |
| Solubility In Water | 111 g/100 mL (20 °C) |
| Ph Aqueous Solution | 13-14 (strongly basic) |
| Cas Number | 1310-73-2 |
| Other Names | Caustic soda, Lye |
| Reactivity | Highly reactive with acids and organic materials |
As an accredited Sodium Hydroxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sodium Hydroxide is packaged in a durable, sealed 1 kg plastic container with hazard labeling, secure screw cap, and safety instructions. |
| Container Loading (20′ FCL) | 20′ FCL for Sodium Hydroxide typically contains 25-26 IBC tanks or drums, securely packed, compliant with safety and transport regulations. |
| Shipping | Sodium hydroxide is shipped in tightly sealed containers, such as drums, tanks, or carboys, made of compatible materials like high-density polyethylene or stainless steel. It is classified as a corrosive substance, requiring proper labeling, handling precautions, and protective equipment. Transport complies with regulations to prevent leaks, spills, and contact with incompatible materials. |
| Storage | Sodium hydroxide should be stored in tightly sealed, corrosion-resistant containers made of materials like polyethylene or stainless steel. Keep it in a cool, dry, well-ventilated area, away from acids, moisture, metals, and organic materials. Clearly label the container and ensure it is kept away from incompatible substances to prevent hazardous reactions. Handle with appropriate personal protective equipment. |
| Shelf Life | Sodium hydroxide has an indefinite shelf life if stored in airtight containers, away from moisture and carbon dioxide to prevent degradation. |
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Purity 99%: Sodium Hydroxide with purity 99% is used in pulp and paper manufacturing, where it ensures high cellulose extraction efficiency. Liquid Form: Sodium Hydroxide in liquid form is used in industrial cleaning processes, where it provides rapid grease and organic matter removal. Microbead Particle Size: Sodium Hydroxide with microbead particle size is used in water treatment facilities, where it enables uniform pH adjustment and improved distribution. Molecular Weight 40.00 g/mol: Sodium Hydroxide with a molecular weight of 40.00 g/mol is used in soap production, where it guarantees consistent saponification rates. Stability Temperature up to 318°C: Sodium Hydroxide stable up to 318°C is used in biodiesel manufacturing, where it maintains catalytic activity under high process temperatures. Viscosity Grade Low: Sodium Hydroxide of low viscosity grade is used in chemical reactors, where it enhances mixing efficiency and reaction rate. Anhydrous Form: Sodium Hydroxide in anhydrous form is used in pharmaceutical synthesis, where it prevents moisture-induced degradation of active ingredients. Corrosion Inhibitor Additive: Sodium Hydroxide with corrosion inhibitor additive is used in metal surface treatment, where it reduces equipment wear and operational downtime. Pellet Form: Sodium Hydroxide in pellet form is used in laboratory titrations, where it allows precise dosing and reproducible results. Chloride Content < 0.1%: Sodium Hydroxide with chloride content below 0.1% is used in electronics manufacturing, where it ensures minimal ionic contamination of semiconductor components. |
Competitive Sodium Hydroxide prices that fit your budget—flexible terms and customized quotes for every order.
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Producing sodium hydroxide isn’t just about running a reactor and watching white flakes pile up. Behind each batch is a chain of decisions and care that many overlook. At our plant, every process—from membrane cell operation to final testing—is driven by the experience of seasoned teams who know the demands of real industries. It’s the kind of attention that builds consistency batch after batch, year after year. Reliable sodium hydroxide does more than meet a demand; it underpins the standards of our customers’ processes and products. Chemists in our factory monitor every parameter, balancing cell voltage, brine concentration, and temperature. Miss the details and impurities slip through. We know this well—because for decades, customers come back not just for our prices, but for the results they get in pulp mills, soapers, refiners, and water treatment plants. The confidence to pour caustic solution into a process vessel, knowing there’s no residue, starts right at the source.
Real-world work shows the variations between sodium hydroxide grades make a difference. We offer two main types: solid flakes and liquid solution. Solid sodium hydroxide comes in 99% purity flakes, mostly free from sodium carbonate and iron impurities. Each sack leaves our warehouse with a certificate matching what’s in the bag. Our liquid caustic soda usually ranges from 30% to 50% solutions. Handling and transport come down to business realities—liquid often works better for high-throughput facilities, flake is easier for small-scale or remote operations.
The chemical formula is straightforward, but sodium hydroxide products from different factories rarely perform identically. Trace chlorides or metal residues sound like small details—all too often, these show up as headaches in paint, dye houses, or food processing units. We use membrane cell technology, which yields a cleaner and more consistent output than older diaphragm or mercury methods. Every shipment undergoes routine tests for heavy metals, sodium carbonate, and iron. After decades in this business, we still update our analytics setup as industry standards get tougher. Customers from textile finishing or pharmaceutical production need more than just a chemical that “dissolves in water.” Strict limits on metallic content or organics aren’t marketing—those limits matter in their lines and products.
Large producers run on caustic soda. There’s no making paper or refining vegetable oil without it. Soap-making, detergents, and water purification all rely on high-purity sodium hydroxide day after day. Across industries, caustic soda neutralizes acid waste, regenerates ion-exchange resins, cleans process lines, and helps extract metals. Each downstream process draws a different requirement from us. Some demand low-salt, high-purity for food-contact uses; others want proven flow rates for continuous dosing pumps. Our technical team frequently works with customers to optimize concentrations, reactivity, and logistics. We’ve seen time and again: quality at the source shields your downstream process. In saponification, for example, small impurities can cause discoloration or soap graining—a lesson any old-fashioned soap maker can vouch for. Over hundreds of millions of tons produced, the simple truth is that poor-quality caustic soda leads to waste and rework.
Achieving high-quality sodium hydroxide isn’t automatic. It takes clean brine, tight process control, and equipment maintenance that never slacks off. If chlorine leaks through, the next batch shows up yellow instead of clean. Brine purification lines pull out calcium and magnesium, or scaling plugs up the system. Titrations and instrumental checks happen daily in our lab. It’s easy to focus on percentage points, but purity levels make or break performance in manufacturing. We design and monitor every cell to extend its working life and keep the cost reasonable, a step that keeps us competitive, but more importantly, lets customers count on a steady supply. Disruptions in plant operation ripple out quickly. That’s why we train operators to spot changes in current draw or off-colors long before a problem lands in a customer’s hands.
Caustic soda flakes leave our plant at 99% minimum purity, with sodium carbonate below 0.8%. These specs have tightened in response to demands from producers who saw too many gels or off-flavors in products made with lower-quality material. In our 50% solution, iron and heavy metals get checked batch by batch—not just as a marketing line, but because our clients in electronics and food can’t risk any drift. Flake form stores well and works best for smaller operations or those in remote locations who rely on stable material that doesn’t degrade in storage. Concentrated solutions ship in bulk and get offloaded in closed systems. Our plant tracks each drum from filling to destination, both to meet local regulations and to help customers trace any unexpected change.
Some businesses use sodium hydroxide for high-volume tasks, while others implement it in craft applications where small shifts in color or odor stand out. Pharmaceutical ingredients, pulp bleaching, and biodiesel production each set the bar differently. We support technical teams with documentation, analytical data, and sample testing, because value comes from process stability, not broad averages. The differences may seem subtle to outsiders, but for facility managers, process engineers, and chemists, these distinctions show up in every daily report.
Real world experience teaches a few hard truths. Tiny amounts of contaminant in sodium hydroxide can ruin a whole batch in dye houses or electroplating tanks. Many users came to us after fighting off-grade shipments, clogged lines, and variable density from other suppliers. A chemical’s pedigree—traceability back to the cell, careful brine prep, regular filter changes—carries weight in settings where product rejections mean lost contracts. That’s why every time we test a batch, we share results upfront: sodium content, carbonate, heavy metals, and moisture. The metrics are more than paperwork; they directly affect things like color stability in synthetic fibers or shelf-life of cosmetic bases. Over the decades, it pays to invest in upstream quality. Small errors multiply in volume production, so our teams walk the floor, listen to plant operators, and adjust to feedback. Tolerances tighten because requirements do.
We craft sodium hydroxide to match two primary forms. The solid, commonly called caustic soda flake, finds use where safe, long-haul transport and long shelf life matter most. Our customers in smaller plants or in geographically challenging locations trust this material, knowing that storage conditions don’t always stay perfect. On the other hand, the 30-50% liquid model works out for bulk users in paper, textile, or chemical synthesis sectors who need reliable flows, minimal manual handling, and ready incorporation into automatic dosing systems. Transportation and loading depend on local routes, container types, and weather—a reality for anyone moving material over land or sea. Every year, we tweak packaging and bulk tank designs based on feedback from field managers who know that corrosion, leaks, or caking costs precious hours on the job. There’s no single “correct” choice—each application, each geography, and each production scale pulls on the model that suits it best.
Compared to salts like sodium carbonate or potassium hydroxide, caustic soda stands out for its high reactivity and versatility. Its role in neutralization or saponification differs sharply from carbonates, which act milder and slower. Our experience tells us that cost-effectiveness isn’t just about price per ton. Some customers tried switching products, lured by price, only to see higher overall usage or costly process adjustments. Potassium hydroxide offers similar chemistry in theory, but actual end results vary—potassium salts present in finished goods can limit their applications in some foods or feedstocks. In cleaning, sodium hydroxide outperforms substitutes on fats and waxes; in metal processing, it yields better results for scale and oxide removal. Over time, we’ve seen customers return to sodium-based methods after trials with other base products because outcomes and product performance simply met their specs more reliably.
Every plant comes with its unique challenges—flow rates, temperatures, corrosion control, downstream needs. We learned through years on the ground that consistency in sodium hydroxide production is not a technical ideal but a real-world necessity. Our reactors run on schedules tuned to raw material quality and weather, our teams tweak filtration systems when seasonal brine changes show up, and the end result is product stability that keeps other lines running. In each shipment, whether in drums, bulk tanks, or flexible bags, customers recognize the footprint of a manufacturer who keeps open lines, accepts feedback, and innovates packaging. There’s a chain of trust from our control room to their factory floor, one that makes or breaks supply contracts over years, not months.
The work doesn’t end at 99% purity. Deeper down, trace metal content, organics, and residual brines set apart products that pass inspection from those that cause real trouble. A dye house can spot color differences from a few parts per million of iron. A soap producer struggles with batch instability if excess sodium carbonate sneaks in. We redesigned our filter setups to target these issues years ago after seeing customer claims and lost batches. Investment in process monitoring—on-line and in-lab—lets plant teams catch deviations early, track sources, and keep process chemistry steady. Sometimes that means overhauling a cleaning cycle or bringing in different brine purification media. Experience in heavy-use sectors taught us never to simply rely on specs: ongoing dialogue with customers uncovers fresh needs and reveals where to push improvement further. Each market sector returns lessons that shape our operations. What pulp and paper needed in the nineties differs from today’s electronic grade, and continuous feedback keeps us aligned with changing demands.
A chemical manufacturer’s reputation grows from practical support, not just the product. Our technical team frequently travels to sites, helps troubleshoot dosing problems, and shared solutions for handling, storage, and unexpected reactions. It’s not rare to get asked for advice on dissolving flakes in winter conditions, or on tanker cleaning to prevent cross-contamination with acids or oils. We know site realities—corrosion, operator training, cylinder handling, facility constraints—shape safe and cost-effective sodium hydroxide use. Small businesses running batch-tablet soap lines face different risks than a continuous flow bleach plant. We’ve helped both with the same core commitment: if equipment jams, tanks corrode, or batches run off-spec, we’re there fast. Each solution reflects years of troubleshooting, not lab theory.
Dry sodium hydroxide needs steady, moisture-proof storage; it reacts fast with water and air, and caked bags spell trouble for dosing. Our plant monitors warehouse conditions, upgrades packaging where needed, and trains logistics partners on safe handling during humid seasons. Liquid caustic calls for stainless or lined tanks and specialized pumps. Over the years, we witnessed what happens with lapses—chemical burns, leaks, hazardous fumes. That’s why our shipments arrive with clear handling guidance based on real incidents, not generic instruction. Repeated interaction with downstream teams means accident rates fall and product shows up on line without surprises.
Industry standards change. We keep up with regulatory shifts that set new thresholds for heavy metals, residue, or labeling requirements. Our product consistently meets or exceeds standards for purity, trace elements, and documentation, because some customers operate where certification blocks imports if data doesn’t line up. We maintain backward traceability—batch numbers connect to process logs, operator signoffs, and brine source documentation. In higher-risk industries, we share our testing protocols openly and update customers promptly if specs or processes shift. This enables our partners in pharma, food, or drinking water not just to comply, but to bid for contracts with confidence.
Anybody can source caustic soda; not everyone can stand behind every shipment. Because we run our own cell rooms, labs, and fill lines, mistakes and successes both rest with us. We keep customer teams in the loop on outages, process upgrades, or quality adjustments—no filters or middlemen—so surprises rarely reach plant floors. Over years, honest dialogue about product limitations or anticipated shifts builds more trust than slick brochures or generic promises.
With each batch produced and delivered, we see how small improvements ripple outward. Sodium hydroxide won’t catch the headlines, but improvements in purity standards, documentation practices, and end-user service have broad impact. The more we learn from customer feedback, international standards, and plant floor troubleshooting, the better we get at anticipating what matters next. Technical know-how—plus steady investments in people, training, and analytics—shapes the sodium hydroxide we make today. This difference rewards customers with fewer disruptions, more consistent results, and the kind of reliability that isn’t just measured in specs but in years of operational ease.